HomeMAN M925M

MAN M925M

  • MAN Engine type – D2862 LE231   |   Meccalte Alternator type – ECO43 2S4A   |  Performance class – G3

General Description

DESCRIPTIVE

  • Electronic governor
  • Mechanically welded chassis with antivibration suspension
  • Main line circuit breaker
  • Radiator for wiring temperature of 48/50°C max with mechanical fan
  • Protective grille for fan and rotating parts
  • 9 dB(A) silencer supplied separately
  • Charger DC starting battery with electrolyte
  • 24 V charge alternator and starter
  • Delivered with oil and coolant -30°C
  • Manual for use and installation

GENERAL CHARACTERISTICS

  • Frequency (Hz) – 50
  • Reference voltage (V) – 400/230
  • Max power ESP (kVA) – 1027
  • Max power ESP (kWe) – 821
  • Max power PRP (kVA) – 925
  • Max power PRP (kWe) – 740
  • Intensity (A)
  • Standard Control Panel DSE – 7110
  • Optional control panel DSE – 7120
  • POWER DEFINITION
    PRP: Prime Power is available for an unlimited number
    of annual operating hours in variable load applications, in accordance with ISO 8528-1.
    ESP: The standby power rating is applicable for
    supplying emergency power in variable load applications in accordance with ISO 8528-1.
    Overload is not allowed
  • TERMS OF USE
    According to the standard, the nominal power assigned by the genset is given for 25°C Air Intlet Temperature, of a barometric pressure of 100 kPA (100 m A.S.L), and 30 % relative humidity. For particular conditions in your installation, refer to the derating table.
  • ASSOCIATED UNCERTAINLY
    For the generating sets used indoor, where the acoustic pressure levels depends on the installation conditions, it is not possible to specify the ambient noise level in the exploitation and maintenance instructions . You will also find in our exploitation and maintenance instructions a warning concerning the air noise dangers and the need to implement appropriated preventive measures.

Engine Specifications

General Engine Datas
  • Engine model MAN Germany – D2862 L231 A,4-temps, Turbo , Air/Air DC 12
  • Cylinder arrangement – V
  • Displacement (C.I.)
  • Bore (mm) x Stroke (mm) – 128 x 157
  • Compression ratio – 17:1
  • Speed (RPM) – 1500
  • Pistons speed (m/s) – 7.58
  • Maximum stand-by power at rated RPM (kW) – 880
  • Frequency regulation (%) – +/- 0.5%
  • BMEP (bar) – 25.4
  • Governor type – Electronic
Cooling System
  • Radiator & Engine capacity (L) – 117
  • Max water temperature (°C) – 100
  • Outlet water temperature (°C)
  • Fan power (kW) – 30
  • Fan air flow w/o restriction (m³/s) – 9
  • Available restriction on air flow (pa) – 260
  • Type of coolant – MAN
  • Thermostat (°C) – 82
Emissions
  • Emission PM (g/kW.h) – N/A
  • Emission CO (g/kW.h) – N/A
  • Emission HCNOx (g/kWh) – N/A
  • Emission HC (g/kW.h) – N/A
Exhaust
  • Exhaust gas temperature (°C) – 514
  • Exhaust gas flow (kg/h) – 3565
  • Max. exhaust back pressure (mm EC) – 750
Fuel
  • Consumption @ 110% load (L/h) – 199
  • Consumption @ 100% load (L/h) – 179
  • Consumption @ 75% load (L/h) – 136
  • Consumption @ 50% load (L/h) – 96
Oil
  • Oil capacity (L) – 90
  • Min. oil pressure (bar) – 20
  • Max. oil pressure (bar) – 29
  • Oil consumption (g/kWh) – 280
  • Carter oil capacity (L) – 70-90
Heat Balance
  • Heat rejection to exhaust (kW) – 469
  • Radiated heat to ambiant (kW) – 280
  • Haet rejection to coolant (kW) – 270
Air Intake
  • Max. intake restriction (mm EC) – 870
  • Intake air flow (m³) – 2910

Alternator Specifications

General Data
  • Alternator brand – Mecc Alte
  • Alternator type – ECO43 2S4A
  • Number of phase – 3
  • Power factor (Cos Phi) – 0.8
  • Altitude (m) – 0 to 1000
  • Overspeed (rpm) – 2250
  • Number of pole – 4
  • Excitation system – SHUNT
  • Insulation class / T° class, continuous 40°C – H / H / 125°K
  • Regulation – DER1
  • Wave Distors (THD Full Load) LL – <3
  • Wave Distors (THD Nol Load) LL – 3.1 / 3.0
  • Number of bearing – 1
  • Coupling – Direct
  • Voltage regulation at established rating (%) – +/- 0.5%
Other Datas
  • Continuous Nominal Rating 40°C (kVA) – 925
  • Standby Rating 27°C (kVA) – 1027
  • Efficiencies 4/4 load (%) – 95.2
  • Air flow (m3/min) – 90
  • Short circuit ratio (Kcc) – 0.33
  • Direct axis synchro reactance unsaturated (Xd) (%) – 431
  • Quadra axis synchro reactance unsaturated (Xq) (%) – 177
  • Open circuit time constant (T’do) (sec) – 8.3
  • Direct axis transcient reactance saturated (X’d) (%) – 19.1
  • Short circuit transcient time constant (T’d) (sec) – 0.33
  • Direct axis subtranscient reactance saturated (X”d) (%) – 8.99
  • Subtranscient time constant (T”d) (sec) – 0.017
  • Quadra axis subtranscient reactance saturated (X”q) (%) – 22.3
  • Zero sequence reactance unsaturated (Xo) (%) – 4.26
  • Negative sequence reactance saturated (X2) (%) – 13
  • Armature time constant (Ta) (sec) – 0.022
  • No load excitation current (io) (A) – 0.6
  • Full load excitation current (ic) (A) – 2.8
  • Recovery time (Delta U = 20% transcient) (ms) – 500
  • Heat rejection (kW) – 33

Control Panel

DSE Deep Sea Electronics 7110 Standard

The DSE 7110 MRS is a versatile unit which can be operated in manual or automatic mode. It offers the following features:

  • Measurements:
    phase-to-neutral and phase-to-phase voltages, (In option: active power currents, effective power, power factor, oil pressure and coolant temperature levels)
  • Supervision:
    Modbus RTU communication on RS485
  • Reports:
    (In option: 2 configurable reports)
  • Safety features:
    Over speed, oil pressure, coolant temperatures, minimum and maximum voltage, minimum and maximum frequency (Maximum active power P<66kVA)
  • Traceability:
    Stack of 50 stored events
    For further information, please refer to the data sheet for the DSE 7110.
DSE Deep Sea Electronics 7210 optional

The DSE 7210 MRS is a versatile control unit which allows operation in manual or automatic mode

  • Measurements:
    voltage and current, kW/kWh/kVA power meters
  • Standard specifications: Voltmeter, Frequency meter.
  • Optional: Battery ammeter. J1939 CAN ECU engine control
  • Alarms and faults: Oil pressure, Coolant temperature, Over speed, Start-up failure, alternator min/max, Emergency stop button.
  • Engine parameters: hour counter, battery voltage.
  • Optional (standard at 24V): Oil pressure, water temperature. Event log/ Management of the last 50 gen set events. Mains and gen set protection, Clock management, USB connections, USB Host and PC,
  • Communications: RS485 INTERFACE, Mod BUS protocol /SNMP
  • Optional: Ethernet, GPRS, remote control, 3G, 4G, Web supervisor, SMS, E-mails